Commit 109f7097 authored by Philipp Zabel's avatar Philipp Zabel Committed by Greg Kroah-Hartman

media: coda: clear error return value before picture run

[ Upstream commit bbeefa73 ]

The error return value is not written by some firmware codecs, such as
MPEG-2 decode on CodaHx4. Clear the error return value before starting
the picture run to avoid misinterpreting unrelated values returned by
sequence initialization as error return value.
Signed-off-by: default avatarPhilipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: default avatarHans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 5c1c6e26
......@@ -1829,6 +1829,9 @@ static int coda_prepare_decode(struct coda_ctx *ctx)
/* Clear decode success flag */
coda_write(dev, 0, CODA_RET_DEC_PIC_SUCCESS);
/* Clear error return value */
coda_write(dev, 0, CODA_RET_DEC_PIC_ERR_MB);
trace_coda_dec_pic_run(ctx, meta);
coda_command_async(ctx, CODA_COMMAND_PIC_RUN);
......
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